Final answer:
The flange bolt holes should be aligned within a maximum offset of 1/16 inch before bolting up flanges to ensure a secure fit and prevent leaks.
Step-by-step explanation:
When inspecting flange connections in an engineering context, it is important for the inspector to check the alignment of the flange bolt holes before proceeding with bolting up flanges. The specification for the alignment tolerance can vary depending on the governing standard or project requirements. However, a common industry standard requires that the bolt holes should be aligned within a maximum offset of 1/16 inch. Ensuring proper alignment is critical as it can affect the integrity and reliability of the flange connection, preventing leaks and ensuring a safe and secure fit between the connecting surfaces. Exceeding this tolerance may lead to issues with bolt stress and may compromise the seal between the flanges.
Before bolting up flanges, it is important for the inspector to check the alignment of the flange bolt holes. These bolt holes should be aligned within a maximum offset of 1 inch.